WO2013132600A1 - Dispositif d'affichage d'images et dispositif optique - Google Patents

Dispositif d'affichage d'images et dispositif optique Download PDF

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Publication number
WO2013132600A1
WO2013132600A1 PCT/JP2012/055749 JP2012055749W WO2013132600A1 WO 2013132600 A1 WO2013132600 A1 WO 2013132600A1 JP 2012055749 W JP2012055749 W JP 2012055749W WO 2013132600 A1 WO2013132600 A1 WO 2013132600A1
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WO
WIPO (PCT)
Prior art keywords
display
lens
light
light shielding
image
Prior art date
Application number
PCT/JP2012/055749
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English (en)
Japanese (ja)
Inventor
敏郎 大櫃
Original Assignee
富士通株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 富士通株式会社 filed Critical 富士通株式会社
Priority to PCT/JP2012/055749 priority Critical patent/WO2013132600A1/fr
Priority to JP2014503328A priority patent/JP6020552B2/ja
Publication of WO2013132600A1 publication Critical patent/WO2013132600A1/fr
Priority to US14/459,381 priority patent/US20140347725A1/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
    • G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
    • H04N13/305—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using lenticular lenses, e.g. arrangements of cylindrical lenses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
    • H04N13/317—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using slanted parallax optics

Definitions

  • the present invention relates to an image display device and an optical device.
  • the stereoscopic image generation device that generates an image that can be stereoscopically viewed using the parallax of images captured by two adjacent cameras.
  • the stereoscopic image generation device generates and displays, for example, an image taken by one of two adjacent cameras as an image for the left eye and an image obtained by the other camera as an image for the right eye. .
  • the difference between the position in the left-eye image and the position in the right-eye image with respect to the same object is called parallax. Since two objects existing in the image have different parallax amounts, it appears that one object exists in front of or behind the other object.
  • the amount of parallax is the magnitude of parallax.
  • a stereoscopic image generating device can display different images for the left eye and the right eye without using dedicated glasses.
  • a lens sheet configured by continuously arranging lenticular lenses is disposed between the display device and the viewer.
  • the left-eye image and the right-eye image are alternately displayed on the display device and viewed through the lenticular lens so that only the left-eye image is displayed on the left eye and the right-eye image is displayed on the right eye. Only the image of the image becomes visible, and can be recognized as a stereoscopic image.
  • An oblique lenticular lens system is also known that obtains high image quality by dispersing resolution deterioration in the vertical and horizontal directions of a display image.
  • FIG. 11 is a diagram illustrating the relationship between the pixel arrangement of the display device and the lenticular lens in the conventional stereoscopic image generating device.
  • FIG. 11 for convenience, only one lenticular lens 511 is shown among the plurality of lenticular lenses 511 constituting the lens sheet.
  • the lenticular lens 511 is indicated by a broken line.
  • the lenticular lens 511 is disposed obliquely with respect to the direction of arrangement of the display elements on the display surface 510a of the display device.
  • the display elements of the color pixels are arranged in the horizontal direction (arrangement direction) with respect to the display surface 510a and in the vertical direction orthogonal to the horizontal direction.
  • the lenticular lens 511 is arranged in an oblique direction (non-parallel direction) with respect to the vertical direction of the arrangement of the display elements on the display surface 510a.
  • each pixel displayed on the display surface 510a is displayed using display elements arranged in an oblique direction.
  • the same alphabet is assigned as an identification code to the display elements forming one pixel.
  • the display elements B12, G22, and R32 form one pixel (pixel D).
  • the arrangement direction of the display elements in each pixel and the direction of each lenticular lens 511 are parallel.
  • one pixel is arranged in an oblique direction.
  • most of the light emitted from the three display elements for displaying the pixel D is incident on the same lenticular lens 511, and is connected by the lens at the position of the left or right eye defined by the user in advance. Imaged. The same applies to other pixels. Further, the pixels of the left eye image and the pixels of the right eye image are alternately arranged. As shown in FIG. 11, when the lenticular lens 511 is disposed obliquely with respect to the arrangement of the display elements and one pixel is disposed obliquely, the resolution is deteriorated evenly in the vertical direction and the horizontal direction. That is, it is possible to prevent the resolution from being lowered only in either the vertical direction or the horizontal direction.
  • JP 2005-176004 A Japanese Patent Application Laid-Open No. 06-301033 Japanese Patent Laid-Open No. 04-035192
  • the lenticular lens 511 outputs, for example, color pixels that form pixels other than the pixel D, such as the color pixels G12, B22, R22, and G32. Light enters and crosstalk occurs.
  • the present invention has been devised in view of such a problem, and an object thereof is to prevent the occurrence of crosstalk in an oblique lenticular lens system.
  • the present invention is not limited to the above-described object, and is an operational effect derived from each configuration shown in the best mode for carrying out the invention described later, and has an operational effect that cannot be obtained by conventional techniques. It can be positioned as one of the purposes.
  • the image display apparatus includes a display unit in which the display elements are arranged in a matrix by arranging the display elements in an arrangement direction and a direction orthogonal to the arrangement direction.
  • the display elements that are arranged along the oblique pixel group corresponding to the oblique display element group of a plurality of display elements that are continuous in a direction inclined with respect to the arrangement direction, and form the oblique display element group
  • a light-shielding portion that prevents light from exiting from the lens is provided.
  • the optical device is an optical device that is attached to a display unit in which the display elements are arranged in a matrix by arranging the display elements in an arrangement direction and a direction orthogonal to the arrangement direction.
  • the display elements are arranged along the oblique pixel group, and each display element constituting the oblique display element group Output light from an unnecessary component output element that is a display element other than the display element that forms the oblique display element group corresponding to the lens, and a lens unit in which a plurality of lenses that image the output light are arranged side by side.
  • a light-shielding portion for preventing emission from the light source.
  • FIG. 1 is a diagram schematically illustrating a configuration of a stereoscopic image display device 1 as an example of a first embodiment
  • FIG. 2 is a diagram illustrating an example of an array of display elements of the display device 10. is there.
  • the stereoscopic image display device image display device 1
  • a viewer is positioned so as to face the display device 10 having the lens sheet 11 attached to the display surface 10a, and the display surface 10a is used for stereoscopic display of the display object.
  • the display target is viewed stereoscopically by the viewer.
  • the stereoscopic display image is, for example, an image captured by two adjacent cameras. Of these two cameras, the image from one camera is used as the left eye image, and the image from the other camera is used as the right eye image. Used as Stereoscopic viewing is possible with these two images having parallax. Note that the stereoscopic display image can be created using various known methods, and detailed description thereof is omitted.
  • the stereoscopic display image (3D video) displayed on the stereoscopic image display apparatus 1 may be a moving image or a still image.
  • a stereoscopic image display device 1 as an example of the first embodiment includes a display device 10, a lens sheet (optical device) 11, and a display control unit 12.
  • the display device 10 is, for example, a liquid crystal display, and displays an image on the display surface 10 a according to control from the display control unit 12. That is, in the stereoscopic image display device 1, a stereoscopic display image is displayed on the display device 10.
  • the stereoscopic display image includes a left-eye image and a right-eye image.
  • the display device 10 will be described as an example of a liquid crystal display, and the display device 10 may be referred to as a liquid crystal display 10 in some cases.
  • the display surface 10a of the liquid crystal display 10 is formed as a flat surface, and a plurality of color pixel elements (display elements) are arranged on the display surface 10a in the horizontal direction of the display surface 10a (the horizontal direction in FIGS. 1 and 2; the arrangement direction). And it arranges in the vertical direction (vertical direction of Drawing 1 and Drawing 2) perpendicular to the horizontal direction. That is, on the display surface 10a of the liquid crystal display 10, the display elements are arranged in a matrix by arranging the display elements in an arrangement direction and a direction orthogonal to the arrangement direction.
  • a plurality of pixels constituting an image (stereoscopic image) displayed on the display surface 10a is represented by a display element (display element).
  • each pixel includes a plurality of color pixels.
  • An example of the color pixel is a color pixel that forms the three primary colors of light of red (R; Red), green (G; Green), and blue (B; Blue).
  • the display elements of these color pixels are repeatedly arranged in a predetermined order in the arrangement direction. Further, display elements of the same type are continuously arranged in a direction perpendicular to the arrangement direction.
  • a black matrix may be arranged at the boundary between the display elements.
  • one pixel is represented by display elements of three consecutive color pixels of R, G, and B.
  • the display element of each color pixel is a rectangular display element in which the light emitting portion has a rectangular shape.
  • R, G, B arranged (continuous) in an oblique direction (non-parallel direction) with respect to the vertical direction of the array of display elements on the display surface 10 a as illustrated in FIG. 2.
  • Each pixel is represented by a display element of three color pixels. That is, one pixel is arranged in an oblique direction.
  • the same alphabet is assigned as an identification code to the display elements of the color pixels that form the same pixel.
  • B12, G22, and R32 which are display elements for color pixels, form one pixel (pixel D).
  • the position of the display element G22 is expressed as coordinates (n, m)
  • the position of the display element B12 Is represented by coordinates (m + 1, n + 1).
  • the position of the display element R32 is represented by coordinates (m-1, n-1).
  • the stereoscopic image display device 1 forms one pixel by these three display elements located in the oblique directions of the coordinates (m ⁇ 1, n ⁇ 1), (m, n) and (m + 1, n + 1). To do.
  • three display elements that form one pixel and are positioned in an oblique direction are referred to as a diagonal display element group.
  • FIG. 3 is a diagram schematically illustrating the configuration of the liquid crystal display 10 of the stereoscopic image display device 1 as an example of the first embodiment.
  • the liquid crystal display 10 includes a backlight 10g and a liquid crystal panel 10b.
  • FIG. 3 shows a liquid crystal display 10 having a general transmissive liquid crystal panel as an example of the liquid crystal display 10.
  • the backlight 10g is a light source and irradiates light to the liquid crystal panel 10b.
  • the liquid crystal panel 10b performs display by a display element by partially blocking or transmitting light emitted from the backlight 10g.
  • the liquid crystal panel 10b includes a diffusion plate 10c, polarizing plates 10d and 10e, and a liquid crystal cell 10f.
  • the diffusing plate 10c diffuses the light emitted from the back panel 10a so that the light uniformly strikes the polarizing plates 10d and 10e and the liquid crystal cell 10f.
  • the polarizing plates 10d and 10e are polarizing filters that allow only light (polarized light) having an amplitude component in a specific direction to pass through the light emitted from the backlight 10g. These polarizing plates 10d and 10e pass light having amplitude components in directions different from each other (for example, orthogonal to each other).
  • a liquid crystal cell 10f is disposed between the polarizing plate 10d and the polarizing plate 10d.
  • the liquid crystal cell 10f includes an electrode, an alignment film, a spacer, a color filter, and the like, and a cell in which a liquid crystal material is sealed in a frame constituted by the alignment film, the spacer, and the like is formed.
  • display elements for R, G, and B color pixels are formed.
  • a lens sheet 11 which will be described later, is disposed with the flat surface 110b facing the polarizing plate 10e. Further, a light shielding portion 101 described later is partially formed on the flat surface 110 b of the lens sheet 11.
  • the light irradiated from the backlight 10g passes through the diffusion plate 10c, the polarizing plate 10d, the liquid crystal cell 10f, and the polarizing plate 10e in this order, and enters the lens sheet 11.
  • the light shielding unit 110 prevents the light irradiated from the liquid crystal panel 10b from entering. That is, in the lens sheet 11, the light emitted from the backlight 10 g enters a portion where the light shielding portion 101 is absent, and the entered light passes through the plano-convex lens 110.
  • the liquid crystal display 10 has a monitor size of 23 inches, for example, and has a resolution of about 1600 ⁇ 900 (dots).
  • the sizes of the R, G and B display elements are 0.418 mm in the horizontal direction (lateral direction in FIG. 2) and 0.705 in the vertical direction (lateral direction in FIG. 2). It is about mm.
  • FIG. 3 shows a liquid crystal display 10 having a transmissive liquid crystal panel.
  • the liquid crystal display 10 various other types of liquid crystal displays 10 can be used.
  • FIG. 4 is a diagram schematically illustrating a hardware configuration of the display control unit 12 of the stereoscopic image display device 1 as an example of the first embodiment.
  • the display control unit 12 includes, for example, a CPU (Central Processing Unit) 131, a LAN (Local Area Network) card 132, a tuner 133, a graphic accelerator 134, a chip set 135, a memory 136, and an audio controller 137. , HDD (Hard Disk Drive) 138, Blu-ray Disc (Blu-ray Disc) drive 139, and an information processing apparatus (computer) including a keyboard controller 140.
  • a CPU Central Processing Unit
  • LAN Local Area Network
  • the graphic accelerator 134 is an image display control interface that is connected to the liquid crystal display 10 and causes the liquid crystal display 10 to display an image. Note that the chip set 135 may have a function as the graphic accelerator 134.
  • the LAN card 132 is an interface card for connecting to a network such as the Internet.
  • the tuner 133 is connected to an external antenna 142, receives a TV program, performs decoding and the like, and displays it on the display device 10 as video data.
  • the memory 136 is a storage device such as a RAM (Random Access Memory) and a ROM (Read Only Memory), and stores various programs and data that are executed or used by the CPU 131.
  • the audio controller 137 is connected to a speaker 143 and controls output of audio data to the speaker 143.
  • the HDD 138 is a storage device, and stores an OS (Operating System) executed by or used by the CPU 131, various programs, data, and the like.
  • the HDD 138 and the memory 136 also store various image data (video data and stereoscopic image data) displayed on the display device 10.
  • the HDD 138 stores stereoscopic image data created in advance for a stereoscopic display target (display target). That is, the HDD 138 functions as a storage unit that stores a stereoscopic display image for each parallax point of the display target for each of a plurality of viewpoints.
  • the Blu-ray disc drive 139 plays a Blu-ray disc.
  • various image data (video data, stereoscopic image data) displayed on the liquid crystal display 10 may be stored in the Blu-ray disc.
  • a reproducing apparatus capable of reproducing a recording medium other than the Blu-ray disc for example, a DVD
  • various image data stored in the recording medium may be reproduced.
  • the keyboard controller 140 is connected to input devices such as a keyboard 144 and a mouse 145, and controls data exchange between the keyboard 144 and mouse 145 and the CPU 131. These units are connected to the chip set 135 via a bus or the like, and control communication between the CPU 131 and these units.
  • the CPU 131 is a processing device that implements various functions by executing programs stored in the HDD 138 and the memory 136.
  • the CPU 131 displays content such as a moving image or a still image on the display surface 10 a of the liquid crystal display 10 and realizes an image display function as the display control unit 12.
  • the display control unit 12 uses the right eye for a specific oblique display element group used for displaying the right eye image among a plurality of oblique display element groups (display elements) constituting the display surface of the liquid crystal display 10. Display an image.
  • the display control unit 12 sets the left eye to a specific oblique display element group used for displaying an image for the left eye among a plurality of oblique display element groups (display elements) constituting the display surface of the liquid crystal display 10. Display the image.
  • the display control unit 12 displays a stereoscopic image on the liquid crystal display 10 by performing these controls.
  • the display control unit 12 controls the luminance values and the like of the three display elements forming the oblique display element group on the display surface 10a of the liquid crystal display 10 in correspondence with one pixel of the stereoscopic image to be displayed.
  • a stereoscopic image is displayed on the liquid crystal display 10.
  • the display control unit 12 controls the backlight 10g and the liquid crystal panel 10b, and generates pixel light by the light source of the backlight 10g.
  • the display control unit 12 controls the brightness values of the three display elements R, G, and B arranged in the arrangement direction on the display surface 10a of the liquid crystal display 10 in correspondence with one pixel of the image to be displayed. By doing so, an image may be displayed on the liquid crystal display 10.
  • the image displayed on the liquid crystal display 10 may be recorded on, for example, the HDD 138, the memory 136, the Blu-ray disc, or may be received via the LAN 132 or the tuner 133, and may be implemented with various modifications. it can.
  • programs (image reproduction applications) for realizing various functions such as the image display function include, for example, a flexible disk, a CD (CD-ROM, CD-R, CD-RW, etc.), a DVD (DVD-ROM). , DVD-RAM, DVD-R, DVD + R, DVD-RW, DVD + RW, etc.), Blu-ray disc, magnetic disc, optical disc, magneto-optical disc, and the like.
  • the computer reads the program from the recording medium, transfers it to the internal storage device or the external storage device, and uses it.
  • the program may be recorded in a storage device (recording medium) such as a magnetic disk, an optical disk, or a magneto-optical disk, and provided from the storage device to the computer via a communication path.
  • a program stored in an internal storage device is executed by a microprocessor (CPU 131 in this embodiment) of a computer.
  • the computer may read and execute the program recorded on the recording medium.
  • the computer is a concept including hardware and an operating system, and means hardware that operates under the control of the operating system. Further, when an operating system is unnecessary and hardware is operated by an application program alone, the hardware itself corresponds to a computer.
  • the hardware includes at least a microprocessor such as a CPU and means for reading a computer program recorded on a recording medium.
  • the stereoscopic image display apparatus 1 has a function as a computer. It is doing.
  • the function as the display control unit 12 can be realized by various known methods, and detailed description thereof is omitted.
  • the lens sheet (lens unit) 11 is a lenticular lens, and is configured as a lens array in which a plurality of planar convex-convex lenses (lenses) 110 are continuously arranged in parallel with the generatrix of each plano-convex lens 110. .
  • the lens sheet 11 has, on the display surface 10 a side of the liquid crystal display 10, a plane 110 b opposite to the convex lens 110 a protruding from each plano-convex lens 110 facing the display surface 10 a of the display device 10.
  • FIG. 5 is a diagram illustrating an example of attachment of the lens sheet 11 to the display device 10.
  • the lens sheet 11 is fixedly attached at a predetermined position in front of the display surface 10 a of the display device 10 (viewer side).
  • the lens sheet 11 is attached to the liquid crystal display 10 by, for example, fixing it to a hook or the like (not shown).
  • the lens sheet 11 is configured to be detachable from the display surface 10a of the liquid crystal display 10, so that the liquid crystal display 10 can be used as a general two-dimensional image display device with the lens sheet 11 detached from the liquid crystal display 10. Can also be used.
  • the lens sheet 11 may be attached to the display surface 10 a of the liquid crystal display 10.
  • the optical axes of the convex lenses 110a of the plano-convex lenses 110 are arranged in parallel to each other, whereby the plano-convex lenses 110 are formed in the same direction.
  • Each plano-convex lens 110 is formed of the same material, and has the same shape such as the curvature of the convex lens 110a and the distance from the top of the convex lens 110a to the flat surface 110b, and the respective f values are equal.
  • the lens sheet 11 is formed so that each plano-convex lens 110 is parallel to the oblique display element group forming one pixel in the liquid crystal display 10 described above. Arranged to overlap the group. That is, the lens sheet 11 is disposed so that the generatrix of each plano-convex lens 110 is inclined with respect to the parallel direction of the display elements on the display surface 10a.
  • the plano-convex lens 110 constituting the lens sheet 11 is positioned in the oblique direction of the coordinates (m ⁇ 1, n ⁇ 1), (m, n), (m + 1, n + 1) on the liquid crystal display 10.
  • the three display elements are arranged so as to overlap with these three display elements. That is, the plano-convex lens 110 is disposed obliquely with respect to the parallel direction of the display elements on the display surface 10 a of the liquid crystal display 10.
  • each oblique pixel group on the display surface 10 a of the liquid crystal display 10 corresponds to one plano-convex lens 110.
  • a combination of the oblique display element group and the plano-convex lens 110 corresponding to the oblique pixel group is referred to as an output pair. Light output from the oblique display element group constituting the output pair is incident on the plano-convex lens 110.
  • the light (three primary colors) respectively output from the oblique display element group (for example, R32, G22, B12) forming one pixel is transmitted through the plano-convex lens 110 and then emitted from the convex lens 110a. These lights intersect and form an image at a position away from the display surface 10a of the liquid crystal display 10 by a predetermined fixed distance. Specifically, the light transmitted through the plano-convex lens 110 is focused only on either the left or right eye of the viewer.
  • the plano-convex lens 110 is arranged along the oblique pixel group in the display surface 10a of the liquid crystal display 10 so as to correspond to the oblique display element group, and each display element constituting the oblique display element group.
  • the output light from is imaged.
  • the imaging position of the output light is defined according to, for example, the focal length of the plano-convex lens 110, the distance between the display surface 10a of the liquid crystal display 10 and the plano-convex lens 110, and the like. Therefore, based on the viewer's position and orientation, these focal lengths and the like are set to optimum values in advance so that the output light is focused on the viewer's eyes.
  • These focal length setting methods and the like are realized by various known methods, and detailed description thereof is omitted.
  • one plano-convex lens 110 is made to correspond to one pixel, so that the light beam of one pixel does not decrease the light intensity (light quantity) and has an accurate focal length. Can be imaged. Further, in the lens sheet 11, each plano-convex lens 110 outputs light (unnecessary pixel component) from another display element different from the display elements constituting the oblique display element group that forms an output pair with the plano-convex lens 110. Is provided with a light-shielding portion 101 that prevents output from the plano-convex lens 110.
  • the light shielding portion 101 receives output light (unnecessary pixel component) from another display element different from the display elements constituting the oblique display element group that forms an output pair with the plano-convex lens 110 to the plano-convex lens 110. By blocking the incidence, the unnecessary pixel component is prevented from being output from the plano-convex lens 110.
  • another display element that outputs an unnecessary pixel component and is different from the display element that constitutes the oblique display element group that forms an output pair with the plano-convex lens 110 may be referred to as an unnecessary component output element.
  • the light shielding unit 101 blocks unnecessary pixel components output from the unnecessary component output element on the flat surface 110 b side, thereby preventing the unnecessary pixel components from entering the plano-convex lens 110.
  • the unnecessary component output element is a display element adjacent in the vertical or horizontal direction to the oblique display element group forming the output pair of the plano-convex lens 110, and is a display that is opposed (superposed) to the plane 110 b of the plano-convex lens 110. It is an element.
  • a region overlapping with the plano-convex lens 110 in the unnecessary component output element is referred to as a light shielding target region.
  • FIG. 6 is a cross-sectional view schematically showing a positional relationship among the liquid crystal display 10, the plano-convex lens 110, and the light shielding portion 101 in the stereoscopic image display apparatus 1 as an example of the first embodiment.
  • the light shielding portion 101 is disposed between the flat surface 110 b of the plano-convex lens 110 and the display surface 10 a of the liquid crystal display 10.
  • the plano-convex lens 110 and the light-shielding part 101 are arranged with a gap therebetween, but it is desirable that the plano-convex lens 110 and the light-shielding part 101 are in close contact with each other.
  • the light shielding unit 101 prevents light (unnecessary pixel component) output from the unnecessary component output element from entering the flat surface 110 b of the plano-convex lens 110.
  • the light-shielding part 101 is a light-shielding film (black polyethylene light-shielding film) made of a highly light-shielding material such as black polyethylene, for example, and is attached to the flat surface 110 b of the plano-convex lens 110.
  • the configuration of the light shielding portion 101 is not limited to this, and various modifications can be made.
  • a material other than black polyethylene may be used as the light shielding part 101.
  • the light shielding part 101 may be made of a material having a high light shielding property instead of attaching the light shielding film to the plano-convex lens 110. You may implement
  • the light shielding unit 101 may be disposed on the convex lens 110a side instead of being disposed on the flat surface 110b side of the plano-convex lens 110 to prevent the output of unnecessary pixel components from the plano-convex lens 110.
  • FIG. 7 and 8 are diagrams for explaining the shape of the light shielding portion 101 of the lens sheet 11 in the stereoscopic image display device 1 as an example of the first embodiment.
  • FIG. 7 is a diagram showing a positional relationship between the plano-convex lens 110 and the unnecessary component output element
  • FIG. 8 is a diagram showing a light shielding target region shown in FIG.
  • only one light shielding portion 101 is shown in FIG. 7, and the light shielding portion 101 is not shown in FIG.
  • the light-shielding unit 101 is a region where the flat surface 110b of the plano-convex lens 110 faces (superimposes) an unnecessary component output element in a state where the lens sheet 11 is attached to the liquid crystal display 10. It is formed in the position which covers.
  • the light shielding target region will be described with reference to FIGS. 7 and 8.
  • the horizontal length of a display element having a rectangular shape is A
  • the vertical length is B
  • the width of the plano-convex lens 110 is C.
  • Each display element has the same size and shape on the entire display surface 10 a of the liquid crystal display 10.
  • the plano-convex lens 110 is arranged so that its generatrix (see the alternate long and short dash line in FIG. 7) coincides with the diagonal lines of the display elements R32, G22, B12 constituting one oblique display element group.
  • the plano-convex lens 110 that forms an output pair with (corresponding to) the oblique display element group (R32, G22, B12) forming one pixel is displayed from the display elements G12, B22, respectively.
  • the output light is an unnecessary pixel component.
  • An area for outputting an unnecessary pixel component in these display elements G12 and B22 that is, an area facing the plano-convex lens 110 corresponding to the oblique display element group (R32, G22, B12) in the display elements G12 and B22, This is a light shielding target area.
  • the light shielding target region in the display element G12 is denoted by reference numeral T1
  • the light shielding target region in the display element B22 is denoted by reference numeral T2.
  • the three sides of the triangle T2 be ⁇ 1, ⁇ 2, and ⁇ 3.
  • a vertex O that is a right angle faces the side ⁇ 3.
  • the three sides of the triangle T1 are ⁇ 1, ⁇ 2, and ⁇ 3.
  • a vertex O that is a right angle faces the side ⁇ 3.
  • an angle formed by one diagonal line of the display element (for example, B12) with a side along the horizontal direction of the display element is ⁇ .
  • the angle formed between the generatrix and the side along the horizontal direction of the display element becomes ⁇ .
  • each light shielding portion 101 has at least the same dimension as [length (Z) of side ⁇ 3] obtained by the above formula (1) along the generatrix of plano-convex lens 110, and In the direction perpendicular to the generatrix (lens width direction), the entire width C of the plano-convex lens 110 is formed. That is, the light-shielding portion 101 is formed as a rectangular region having the same dimension as the [length (Z) of side ⁇ 3] in the generatrix direction of the plano-convex lens 110 and the same dimension as the lens width C in the lens width direction. Is done.
  • each plano-convex lens 110 a plurality of light-shielding portions 101 are repeatedly formed at equal intervals along the generatrix, and the interval between adjacent light-shielding portions 101 is also obtained by the above equation (1) [length of side ⁇ 3 (Z)].
  • a plurality of light shielding portions 101 are formed corresponding to the light shielding target region of the unnecessary component output element.
  • the lens sheet 11 on which the light shielding portion 101 is formed functions as the optical device of the present application.
  • the lens sheet 11 and the light shielding unit 101 configured as described above are provided.
  • the optical device is attached to the liquid crystal display 10, for example, as shown in FIG.
  • the lens sheet 11 includes a plurality of plano-convex lenses 110 having a plurality of light shielding portions 101 corresponding to the light shielding target regions of the unnecessary component output elements.
  • each oblique display element group on the display surface 10 a of the liquid crystal display 10 corresponds to any plano-convex lens 110.
  • the arrangement direction of the display elements constituting the oblique display element group coincides with the direction of the generatrix of each plano-convex lens 110.
  • the display control unit 12 displays a stereoscopic image on the liquid crystal display 10.
  • the liquid crystal is controlled by controlling the luminance values and the like of the three display elements forming the oblique display element group on the display surface 10a of the liquid crystal display 10 in correspondence with one pixel of the stereoscopic image to be displayed.
  • a stereoscopic image is displayed on the display 10.
  • the light output from the oblique display element group is incident on the flat surface 110 b of the plano-convex lens 110 forming the output pair, is irradiated from the convex lens 110 a, and is a viewer at a predetermined position. It forms an image on the eyes.
  • the light output from the unnecessary component output element that is not the output pair of the plano-convex lens 110 is prevented from entering the plane 110 b by the light shielding unit 101. .
  • step S10 the processing of the display control unit 12 in the stereoscopic image display apparatus 1 as an example of the first embodiment will be exemplified according to the flowchart (steps S10 to S80) shown in FIG.
  • the image reproduction application production application
  • step S20 the image reproduction application
  • step S20 This confirmation is performed, for example, by confirming a model ID or the like stored in the memory 136 or the HDD 138 of the display control device 13 of the stereoscopic image display device 1.
  • step S30 it is confirmed whether or not the lens sheet 11 (3D panel) is attached to the display device 10 (step S30).
  • the display control unit 12 determines whether or not the lens sheet 11 is attached based on a detection result of a sensor that detects attachment of the lens sheet 11 in the display device 10. If the result of this determination is that the lens sheet 11 is not attached to the display device 10 (see NO route in step S30), 2D display is performed (step S80). That is, the same image is displayed on the display device 10 for the left-eye image and the right-eye image. At this time, a dialog box indicating that the stereoscopic image cannot be displayed may be displayed on the display device 10.
  • step S30 When the lens sheet 11 is attached to the display device 10 and 3D display can be performed (see YES route in step S30), the sheet ID of the attached lens sheet 11 is confirmed, and 3D is displayed.
  • the type of method is confirmed (step S40). This is because the setting of the display pixel group changes depending on the number of parallaxes to be displayed (the number of places where 3D video is confirmed).
  • the display control unit 12 sets the number of parallaxes displayed according to the confirmed 3D system type (step S50), and switches to left and right video display with the number of parallaxes according to the setting (step S60). Then, the display control unit 12 performs 3D display by displaying the parallax image for the right eye and the parallax image for the left eye (3D video content) using the display element (step S70). The process ends.
  • the plano-convex lens 110 is output from an unnecessary component output element that is not an output pair of the plano-convex lens 110. The light is blocked from entering the flat surface 110b by the light shielding portion 101. Thereby, the occurrence of crosstalk can be prevented.
  • FIG. 10 is a diagram schematically illustrating a configuration of a stereoscopic image display device 1 as an example of a second embodiment.
  • the stereoscopic image display device 1 as an example of the second embodiment includes a light shielding target region and a light shielding target region as shown in FIG. 10 instead of the light shielding unit 101 having a rectangular shape formed on the plano-convex lens 110 of the first embodiment.
  • the light shielding unit 101a having the same shape is provided, and the other parts are configured in the same manner as the stereoscopic image display device 1 of the first embodiment.
  • the light shielding unit 101 in the plano-convex lens 110, has the same shape as the light shielding target region represented by the triangles T1 and T2 in FIGS. .
  • the light-shielding portion 101a has the output from the plano-convex lens 110.
  • the luminance of the light output from each display element of the oblique display element group that forms an output pair with the plano-convex lens 110 does not occur.
  • the liquid crystal display 10 has shown the example which provides the display element of three types of color pixels of R, G, B, it is not limited to this, R, G, Display elements other than B may be used.
  • the light shielding portions 101 and 101a are provided corresponding to the light shielding target regions of the display surface 10a of the liquid crystal display 10, but the light shielding portions 101 and 101a are not necessarily required to completely cover these light shielding target regions. There is no. That is, the light shielding portions 101 and 101a may be disposed so as to cover at least a part of the light shielding target region, and light output from a part of the light shielding target region may be prevented from entering the plano-convex lens 110. . As a result, the effect of reducing the crosstalk can be achieved.
  • Stereoscopic image display device (image display device) DESCRIPTION OF SYMBOLS 10 Liquid crystal display, display apparatus 10a Display surface 10b Liquid crystal panel 10c Diffusion plate 10d, 10e Polarizing plate 10f Liquid crystal cell 10g Backlight 11 Lens sheet (lens unit) 12 Display control unit 101, 101a Light-shielding unit 110 Plano-convex lens 110a Convex lens 110b Plane 131 CPU 132 LAN card 133 tuner 134 graphic accelerator 135 chipset 136 memory 137 audio controller 138 HDD 139 Blu-ray Disc Drive 140 Keyboard Controller 142 External antenna 143 Speaker 144 Keyboard 145 Mouse

Abstract

　On réduit la diaphonie au minimum grâce à un dispositif d'affichage d'images qui comprend : une unité d'affichage (10) qu'on fabrique en plaçant des éléments d'affichage dans une forme de matrice en disposant les éléments d'affichage dans la direction de réseau des éléments d'affichage et une direction perpendiculaire à cette direction de réseau ; et une unité de lentilles (11) qu'on fabrique en plaçant dans l'unité d'affichage (10) une pluralité de lentilles (110) disposées de manière à correspondre à chaque groupe d'éléments d'affichage en rangée inclinée comprenant une pluralité d'éléments d'affichage contigus dans une direction inclinée par rapport à la direction du réseau, les lentilles étant disposées le long de ce groupe de pixels inclinés, les images étant formées au moyen de la lumière émise par chacun des éléments d'affichage qui constituent le groupe d'éléments d'affichage en rangée inclinée ; et une partie de protection contre la lumière (101) qui s'oppose à l'émission depuis la lentille (110) d'une lumière émise venant des éléments composites d'émission non nécessaires, qui sont des éléments d'affichage autres que les éléments d'affichage constituant le groupe d'éléments d'affichage en rangée inclinée correspondant à la lentille (110).
PCT/JP2012/055749 2012-03-07 2012-03-07 Dispositif d'affichage d'images et dispositif optique WO2013132600A1 (fr)

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JP2014503328A JP6020552B2 (ja) 2012-03-07 2012-03-07 画像表示装置及び光学装置
US14/459,381 US20140347725A1 (en) 2012-03-07 2014-08-14 Image display device and optical device

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